5-Amino-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
3-Amino-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetic acid
2-Amino-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
2-Amino-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetic acid